This year we are conducting a study at the Rice Experiment Station to look at lodging differences between M-206 and M-105. There has been anecdotal evidence that M105 is more susceptible to lodging than M-206. We want to quantify this and see if we can manage N to reduce lodging if need be. Anyways, with this experiment, we have both of these varieties side-by-side in experimental plots. We used Cerano as part of the herbicide program. You can  clearly see from the picture  that M-206 is more susceptible to Cerano bleaching than M-105. Ray talked with Kent McKenzie about this and he also said he had seen similar findings. Anyway, we thought this might be interesting information for you.